ath6kl: cleanup callbacks for different scatter gather method

Define a hook in ath6kl_hif_ops for hif scatter gather mechanism.
When virtual scatter gather is used, call the respective function
directly.
Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath6kl/hif-ops.h

@@ -59,6 +59,12 @@ static inline int ath6kl_hif_enable_scatter(struct ath6kl *ar,
 	return ar->hif_ops->enable_scatter(ar, info);
 }
 
+static inline int ath6kl_hif_scat_req_rw(struct ath6kl *ar,
+					 struct hif_scatter_req *scat_req)
+{
+	return ar->hif_ops->scat_req_rw(ar, scat_req);
+}
+
 static inline void ath6kl_hif_cleanup_scatter(struct ath6kl *ar)
 {
 	return ar->hif_ops->cleanup_scatter(ar);

drivers/net/wireless/ath/ath6kl/hif.h

@@ -186,7 +186,6 @@ struct hif_scatter_req {
 };
 
 struct hif_dev_scat_sup_info {
-	int (*rw_scat_func) (struct ath6kl *ar, struct hif_scatter_req *);
 	int max_scat_entries;
 	int max_xfer_szper_scatreq;
 };
@@ -210,6 +209,8 @@ struct ath6kl_hif_ops {
 				struct hif_scatter_req *s_req);
 	int (*enable_scatter)(struct ath6kl *ar,
 			      struct hif_dev_scat_sup_info *info);
+	int (*scat_req_rw) (struct ath6kl *ar,
+			    struct hif_scatter_req *scat_req);
 	void (*cleanup_scatter)(struct ath6kl *ar);
 };
 

drivers/net/wireless/ath/ath6kl/htc_hif.c

@@ -285,7 +285,10 @@ int ath6kldev_submit_scat_req(struct ath6kl_device *dev,
 		return status;
 	}
 
-	status = dev->hif_scat_info.rw_scat_func(dev->ar, scat_req);
+	if (dev->virt_scat)
+		status =  ath6kldev_rw_scatter(dev->ar, scat_req);
+	else
+		status = ath6kl_hif_scat_req_rw(dev->ar, scat_req);
 
 	if (read) {
 		/* in sync mode, we can touch the scatter request */
@@ -340,7 +343,6 @@ static int ath6kldev_setup_virt_scat_sup(struct ath6kl_device *dev)
 	if (status)
 		ath6kl_hif_cleanup_scatter(dev->ar);
 	else {
-		dev->hif_scat_info.rw_scat_func = ath6kldev_rw_scatter;
 		dev->hif_scat_info.max_scat_entries =
 			ATH6KL_SCATTER_ENTRIES_PER_REQ;
 		dev->hif_scat_info.max_xfer_szper_scatreq =

drivers/net/wireless/ath/ath6kl/sdio.c

@@ -271,9 +271,9 @@ static int ath6kl_sdio_scat_rw(struct ath6kl_sdio *ar_sdio,
 }
 
 
-/* callback to issue a read-write scatter request */
+/* scatter gather read write request */
 static int ath6kl_sdio_async_rw_scatter(struct ath6kl *ar,
-					struct hif_scatter_req *scat_req)
+				 struct hif_scatter_req *scat_req)
 {
 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);
 	struct hif_scatter_req_priv *req_priv = scat_req->req_priv;
@@ -379,8 +379,6 @@ static int ath6kl_sdio_setup_scat_resource(struct ath6kl_sdio *ar_sdio,
 		hif_scatter_req_add(ar_sdio->ar, s_req);
 	}
 
-	/* set scatter function pointers */
-	pinfo->rw_scat_func = ath6kl_sdio_async_rw_scatter;
 	pinfo->max_scat_entries = MAX_SCATTER_ENTRIES_PER_REQ;
 	pinfo->max_xfer_szper_scatreq = MAX_SCATTER_REQ_TRANSFER_SIZE;
 
@@ -671,6 +669,7 @@ static const struct ath6kl_hif_ops ath6kl_sdio_ops = {
 	.scatter_req_get = ath6kl_sdio_scatter_req_get,
 	.scatter_req_add = ath6kl_sdio_scatter_req_add,
 	.enable_scatter = ath6kl_sdio_enable_scatter,
+	.scat_req_rw = ath6kl_sdio_async_rw_scatter,
 	.cleanup_scatter = ath6kl_sdio_cleanup_scatter,
 };